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Engineering Laboratory

Materials and Structural Systems Division

Search the Stone wall

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Search by state, country, classification, source, wall number or description.

Wall Number Country State Classification Source Description
6RB9 United States Pennsylvania Serpentine Chester green, coarse grain, impure
6RB8 United States Pennsylvania Sandstone Black Walnut light blue gray, fine grain, porous, Devonian
6RB7 United States Pennsylvania Sandstone Cannonsburgh light gray, fine grain, porous, carboniferous
6RB6 United States Pennsylvania Sandstone Center Bridge purplish-gray, fine grain, compact, Triassic
6RB5 United States Pennsylvania Sandstone Greenville light olive, fine grain, porous, carboniferous
6RB47 United States Vermont Granite Ryegate gray, fine grain, biotite-muscovite
6RB46 United States Vermont Granite Barre light gray, fine grain, biotite
6RB45 United States Vermont Granite Brunswick gray, fine grain, biotite
6RB44 United States New Hampshire Granite Keene light gray, fine grain, biotite-muscovite
6RB43 United States New Jersey Diabase Rocky Hill dark gray, very fine grain
6RB42 United States South Carolina Granite Batesburg dark gray, medium grain, biotite
6RB41 United States Maryland Serpentine Dublin Borough dark and light-green, variegated
6RB40 United States Maryland Gneiss Mt. Royal light gray, fine grain, biotite
6RB4 United States Pennsylvania Sandstone Center Bridge gray, rust-spotted, coarse grain, compact, Triassic
6RB39 United States Ohio Sandstone Sunbury light gray, fine grain, porous, Lower carboniferous
6RB38 Mexico Tuff Huehutoca Red, coarse grain, rhyolite
6RB37 Mexico Tuff Oaxaca State brown, white-mottled, fine grain, porous
6RB36 United States Connecticut Granite Thomaston gray, fine grain, biotite-muscovite
6RB35 United States Connecticut Gneiss Ansonia gray, fine grain, compact, muscovite-biotite
6RB34 United States Minnesota Granite Watab Red, coarse grain, hornblende
6rb33 United States Colorado Tuff Castle rock light gray, fine grain, rhyolite
6rb32 United States Colorado Granite Georgetown gray, medium grain, Porphyritic, biotite
6RB31 United States Texas Granite Nr. Llano gray, coarse grain, biotite
6RB30 United States California Sandstone Alameda light brown, coarse grain, porous
6RB3 United States Pennsylvania Sandstone Kiasola Station Beaver Co. gray, coarse grain, porous, carboniferous
6RB29 United States Kentucky Sandstone Kirkmansville yellowish, medium grain, porous
6RB28 United States New York Sandstone Canisteo light gray, fine grain, compact, Devonian
6RB27 United States Maine Granite Franklin gray, coarse grain, biotite
6RB26 United States Maine Granite Bryant's Pond dark gray, medium grain, biotite
6RB25 United States Maine Granite Calais pinkish-gray, medium grain, biotite
6RB24 United States North Carolina Granite Salisbury light gray, fine grain, Archaean, biotite
6RB23 United States North Carolina Granite Mt. Airy yellowish-gray, medium grain, biotite
6RB22 United States Massachusetts Granite Rockport dark gray, coarse grain, hornblende
6RB21 United States Ohio Sandstone Marietta buff, coarse grain, porous, carboniferous
6RB20 United States Ohio Sandstone Amherst light gray, fine grain, porous, Lower carboniferous
6RB2 United States Pennsylvania Sandstone Franklin gray, fine grain, porous, Sub-carboniferous
6RB19 United States Pennsylvania Diabase Reading dark gray, coarse grain
6RB18 United States Pennsylvania Gneiss Chester light gray, fine grain, garnet, biotite-muscovite
6RB17 United States Pennsylvania Gneiss Philadelphia dark gray, fine grain, biotite
6RB16 United States Pennsylvania Diabase Round Top Gettysburg gray, fine grain, porous, Mesozoic
6RB15 United States Pennsylvania Argillite (Slate) Bangor blue-black, fine grain, roofing slate
6RB14 United States Pennsylvania Diabase Reading nearly black, fine grain
6RB13 United States Pennsylvania Conglomerate Friedensburg dark purple, coarse grain, porous, siliceous, Potsdam
6RB12 United States Pennsylvania Conglomerate Pikesville reddish-gray, compact, conglomerate
6RB11 United States Pennsylvania Conglomerate Pottsville brown and gray, coarse, compact, siliceous
6RB10 United States Pennsylvania Diabase St. Peters dark gray, medium grain, compact, St Peters Granite
6RB1 United States Pennsylvania Quartzite Huntingdon light gray, fine grain
6RA9 United States Pennsylvania Sandstone Garland yellow, coarse grain, porous, carboniferous
6RA8 United States Pennsylvania Sandstone Homewood brown, coarse grain, porous, carboniferous
6RA7 United States Pennsylvania Sandstone Derry Station Westmorland Co. bluish-gray, fine grain, compact, carboniferous
6RA6 United States Pennsylvania Sandstone Farrandsville buff, fine grain, porous, Devonian
6RA5 United States Pennsylvania Sandstone Mauch Chunk dark gray, fine grain, compact
6RA47 United States Wisconsin Quartzite Waterloo gray, coarse grain, compact, paving stone
6RA46 United States Michigan Gneiss Vulcan dark gray, fine grain, biotite
6RA45 United States Vermont Granite Newark pink, coarse grain, biotite
6RA44 United States New Hampshire Granite Milford light gray, fine grain, biotite
6RA43 United States New Hampshire Gneiss Petersborough gray, medium grain, muscovite-biotite
6RA42 United States New Jersey Sandstone Martinville drab, fine grain, compact, Triassic
6RA41 United States Maryland Argillite (Slate) Nr. Cardiff blue-black, medium coarse texture, roofing
6RA40 United States Maryland Gneiss Ellicott City dark gray, coarse grain
6RA4 United States Pennsylvania Sandstone Connellsville light gray, fine grain, porous, carboniferous
6RA39 United States Massachusetts Granite N. Easton pinkish, coarse grain, biotite
6RA38 United States North Carolina Granite Gaston Co. gray, coarse grain, biotite
6RA37 Mexico Tuff Zacatecas State pinkish, fine grain, compact, rhyolite
6RA36 United States Connecticut Gneiss Gastonbury gray, fine grain, biotite
6RA35 United States Connecticut Granite Millstone Point gray, fine grain, biotite
6RA34 United States Minnesota Granite E. St. Cloud dark gray, coarse grain, hornblende
6RA33 United States Colorado Sandstone Greeley light red, laminated, fine grain, compact
6RA32 United States Texas Diorite El Paso light greenish-gray, medium grain
6RA31 United States California Sandstone Haywards brown, medium grain, porous
6RA30 United States Kentucky Sandstone Whitney Co. light blue gray, fine grain, porous
6RA3 United States Pennsylvania Sandstone Hummelstown brownish-purple, coarse grain, porous, Triassic
6RA29 United States New York Sandstone Albion brownish-purple, fine grain, compact, Upper Silurian
6RA28 United States New York Sandstone Belfast drab, medium grain, compact
6RA27 United States Maine Granite Brunswick gray, coarse grain, biotite
6RA26 United States Maine Granite Chesterville gray, fine grain, biotite
6RA25 United States Maine Gneiss Turner dark gray, medium grain, biotite
6RA24 United States North Carolina Granite Salisbury brownish-gray, medium grain, biotite
6RA23 United States North Carolina Granite Salisbury pinkish-gray, coarse grain, biotite
6RA22 United States Massachusetts Granite W. Quincy dark gray, coarse grain, hornblende
6RA21 United States Ohio Sandstone Ridgeville buff, medium grain, porous, Lower carboniferous
6RA20 United States Ohio Sandstone Lancaster light gray, coarse, friable, Lower carboniferous
6RA2 United States Pennsylvania Sandstone Columbia blue-drab, fine grain, compact, argillaceous, Lower Silurian
6RA19 United States Pennsylvania Quartzite Jacksonwald light gray, fine grain, compact
6RA18 United States Pennsylvania Sandstone Danville dark blue gray, fine grain, compact, Upper Silurian
6RA17 United States Pennsylvania Sandstone Greensburgh gray, fine grain, compact, carboniferous
6RA16 United States Pennsylvania Sandstone Goldsboro purplish-brown, medium grain, porous, Triassic
6RA15 United States Pennsylvania Sandstone Connellsville green-tinted, brown, coarse, porous, carboniferous
6RA14 United States Pennsylvania Sandstone Fuller buff, coarse grain, porous, carboniferous
6RA13 United States Pennsylvania Sandstone Goldsboro purplish-brown, medium grain, compact, Triassic
6RA12 United States Pennsylvania Sandstone Lucesco gray, dark-streaked, medium grain, compact, carboniferous
6RA11 United States Pennsylvania Sandstone Layton Station Fayette Co. light gray, medium grain, porous, carboniferous
6RA10 United States Pennsylvania Sandstone Johnstown light gray, fine grain, compact, carboniferous
6RA1 United States Pennsylvania Sandstone Mainesburgh blue gray, fine grain, compact, Devonian
6R48 United States North Carolina Sandstone Raleigh cut from same block as No 6L48, brownish-gray, coarse grain, porous
6LQ United States Georgia Marble Tate bluish-gray, coarse grain, calcite, Cherokee
6LB9 United States Pennsylvania Sandstone Baden gray, rust-spotted, coarse, porous, carboniferous
6LB8 United States Pennsylvania Sandstone Webster brownish-gray, banded, fine grain, carboniferous
6LB7 United States Pennsylvania Sandstone Yardleyville light brown, medium grain, porous, Triassic
6LB6 United States Pennsylvania Sandstone Prospect gray, fine grain, compact, carboniferous